I’m outlining several of these key technical and macro warning signs as they are important to understanding what investors and traders have to contend with into 2019. First, let’s be clear what happened in 2018: After liquidity infusions of $5 trillion in record global central bank intervention between 2016 and 2017 and the U.S. tax cut that followed, we witnessed a global blow-off top in January and then a 10% correction off historic overbought levels.